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you know that:

Area=length x width

Area=A=30 cm2

and that the width= w

and that the length= 2w

so, what you do is:

30=2w*w (solve for w)

30=2w2

15=w2

take the square root of 15=w

w=3.87cm

Your width is 3.87cm

your length is 2(3.87)=7.75cm

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โˆ™ 2011-02-06 03:04:58
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Q: What is the area of a rectangle that has and area of 30 centimeters and the length is twice the width?
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